A cable exit trough defining an insert aperture for receiving a modular cable management inserts. The modular insert providing an additional cable management device such as a curved guidewall. The cable management device may alternatively be fixed to the cable exit trough. removable snap-mounted flanges may also be included in the exit trough. The exit trough may also include an exit cover having a cover plate and a pivot plate hingedly mounted thereto for easy access to the trough.
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9. An insert piece to be received into a cable exit trough having an aperture in a bottom trough surface therein; the insert piece comprising:
a curved major surface having a first convex side and a second concave side, the surface also having edges; guide tabs extending from at least two edges of the major surface toward the concave side of the major surface; each guide tab including a detent ridge configured to engage an edge of a retaining wall of the cable exit trough; and a plurality of alignment pins protruding from the concave side of the major surface, the alignment pins spaced to be received by alignment holes in the cable exit trough.
12. A cable exit trough mountable to a lateral trough section, the lateral trough section including an upstanding side having substantially uniform height and terminating at a top edge, the exit trough comprising:
an upper portion having a bottom trough surface and two side walls extending from opposite sides of the bottom trough surface to define an exit cable pathway, the bottom trough surface having a convexly curved portion and a guidewall extending upwardly from the convexly curved portion and dividing the exit cable pathway; the cable exit trough being releasably mountable to the lateral trough section; wherein, when mounted to the lateral trough, the cable exit pathway extends transversely over the top edge of the upstanding side of the lateral trough section so that cable can be routed upwardly from the lateral trough section over the top edge of the lateral trough section.
13. A cable trough mountable to a lateral trough section, the lateral trough section defining a first cable pathway and having an upstanding side of substantially uniform height, the cable trough comprising:
a bottom surface having a curved-portion leading upwardly with respect to the lateral trough section while maintaining a cable minimum bend radius; first and second side wall surfaces extending from the bottom surface, the side wall surfaces having a curved portion leading from a direction generally parallel to the first cable pathway toward a direction generally perpendicular to the first cable pathway while maintaining the cable minimum bend radius; an upstanding guidewall extending from the curved portion of the bottom surface, the guidewall located between the first and second side wall surfaces; and wherein, when mounted to the lateral trough, the bottom and side wall surfaces of the cable trough define a second cable pathway that leads over the upstanding side of the lateral trough section, and wherein the guidewall divides the second cable pathway.
16. A cable exit trough mountable to a lateral trough section, the lateral trough section defining a cable pathway and having an upstanding side of substantially uniform height; the exit trough comprising:
a bottom surface having a curved portion leading upwardly with respect to the lateral trough section while maintaining a cable minimum bend radius; first and second side wall surfaces extending from the bottom surface, the side wall surfaces having a curved portion leading from a direction generally parallel to the cable pathway toward a direction generally perpendicular to the cable pathway while maintaining the cable minimum bend radius; a lead-in portion having an upwardly curved surface, the lead-in portion extending from at least one of the side wall surfaces; a removable flange that snap-fits onto the lead-in portion, the flange having a cable guiding surface spaced from the sidewall surface to create a cable pathway therebetween, the flange having a member that extends across at least a portion of the width of the cable pathway between the sidewall surface and the cable guiding surface, the member being snap-fit to the lead-in portion; and wherein, when mounted to the lateral trough, the bottom and side wall surfaces of the exit trough define a cable exit pathway that leads over the upstanding side of the lateral trough section, and wherein the guidewall divides the exit pathway.
1. A cable exit trough mountable to a lateral trough section, the lateral trough section including an upstanding side terminating in a top edge, the exit trough comprising:
a U-shaped bracket portion sized to receive a portion of the upstanding side of the lateral trough section adjacent to the top edge of the lateral trough section; the bracket portion including an outer projecting member, an inner projecting member and a connecting member to form the U-shaped bracket portion, the outer projecting member positionable outside the lateral trough section, the inner projecting member positionable inside the lateral trough section, the connecting member positionable adjacent to the top edge of the lateral trough section, the bracket portion including first and second ends, and a middle therebetween; first and second lead-in portions extending upwardly from the bracket portion at the first and second ends, respectively, each lead-in portion converging toward the other lead-in portion and extending in an upward direction when the exit trough is mounted to the lateral trough section; and an exit trough portion extending from the middle of the bracket portion in a direction away from the lateral trough section when the exit trough is mounted to the lateral trough section, the exit trough portion defining a cable pathway in communication with each cable pathway of each lead-in portion, the exit trough portion including a convexly curved bottom trough surface having an upstanding guidewall dividing the cable pathway of the exit trough portion, the exit trough portion also including two convexly curved upstanding side surfaces on opposite sides of the bottom trough surface.
3. A cable exit trough mountable to a lateral trough section, the lateral trough section including an upstanding side terminating in a top edge, the exit trough comprising:
a U-shaped bracket portion sized to receive a portion of the upstanding side of the lateral trough section adjacent to the top edge of the lateral trough section; the bracket portion including an outer projecting member, an inner projecting member and a connecting member to form the U-shaped bracket portion, the outer projecting member positionable outside the lateral trough section, the inner projecting member positionable inside the lateral trough section, the connecting member positionable adjacent to the top edge of the lateral trough section, the bracket portion including first and second ends, and a middle therebetween; first and second lead-in portions extending upwardly from the bracket portion at the first and second ends, respectively, each lead-in portion converging toward the other lead-in portion and extending in an upward direction when the exit trough is mounted to the lateral trough section; an exit trough portion extending from the middle of the bracket portion in a direction away from the lateral trough section when the exit trough is mounted to the lateral trough section, the exit trough portion defining a cable pathway in communication with each cable pathway of each lead-in portion, the exit trough portion including a convexly curved bottom trough surface, the bottom trough surface defining an insert aperture, the exit trough portion also including two convexly curved upstanding side surfaces on opposite sides of the bottom trough surface; and a removable insert received by the insert aperture, the insert forming a portion of the bottom trough surface.
6. A cable exit trough mountable to a lateral trough section, the lateral trough section including an upstanding side terminating in a top edge, the exit trough matable with an insert, the insert having an upper convexly curved surface, and a lower mounting member, the exit trough comprising:
a U-shaped bracket portion sized to receive a portion of the upstanding side of the lateral trough section adjacent to the top edge of the lateral trough section; the bracket portion including an outer projecting member, an inner projecting member and a connecting member to form the U-shaped bracket portion, the outer projecting member positionable outside the lateral trough section, the inner projecting member positionable inside the lateral trough section, the connecting member positionable adjacent to the top edge of the lateral trough section, the bracket portion including first and second ends, and a middle therebetween; first and second lead-in portions extending upwardly from the bracket portion at the first and second ends, respectively, each lead-in portion converging toward the other lead-in portion and extending in an upward direction when the exit trough is mounted to the lateral trough section; an exit trough portion extending from the middle of the bracket portion in a direction away from the lateral trough section when the exit trough is mounted to the lateral trough section, the exit trough portion defining a cable pathway in communication with each cable pathway of each lead-in portion, the exit trough portion including a bottom trough surface, the bottom trough surface having a convexly curved surface, the bottom trough surface defining an insert aperture passing through the convexly curved surface sized for receiving the insert, the exit trough portion defining a mounting member for engaging the lower mounting member of the insert, the exit trough portion also including two convexly curved upstanding side surfaces on opposite sides of the bottom trough surface.
8. A cable exit trough mountable to a lateral trough section, the lateral trough section including an upstanding side terminating in a top edge, the exit trough comprising:
a U-shaped bracket portion sized to receive a portion of the upstanding side of the lateral trough section adjacent to the top edge of the lateral trough section; the bracket portion including an outer projecting member, an inner projecting member and a connecting member to form the U-shaped bracket portion, the outer projecting member positionable outside the lateral trough section, the inner projecting member positionable inside the lateral trough section, the connecting member positionable adjacent to the top edge of the lateral trough section, the bracket portion including first and second ends, and a middle therebetween; first and second lead-in portions extending upwardly from the bracket portion at the first and second ends, respectively, each lead-in portion converging toward the other lead-in portion and extending in an upward direction when the exit trough is mounted to the lateral trough section, each lead-in portion defining a slot and hole for receiving a removable, snap-mounted, downwardly depending flange; first and second removable flanges snap-mounted to the lead-in sections respectively, each flange having a downwardly depending surface spaced from the inner projecting member of the bracket portion to define a cable pathway therebetween, each flange having a portion extending the width of the cable pathway created between the inner projecting member and the downwardly depending surface, the portion having a distal end that opposes the downwardly depending flange and snap-fits with the lead-in portion; an exit trough portion extending from the middle of the bracket portion in a direction away from the lateral trough section when the exit trough is mounted to the lateral trough section, the exit trough portion defining a cable pathway in communication with each cable pathway of each lead-in portion, the exit trough portion including a convexly curved bottom trough surface and two convexly curved upstanding side surfaces on opposite sides of the bottom trough surface.
4. The cable exit trough of
7. The cable exit trough of
10. The insert piece according to
17. The cable exit trough of
18. The cable exit trough of
a second lead-in portion having an upwardly curved surface, the second lead-in portion extending from one of the side wall surfaces; and a second removable flange snap-fit onto the second lead-in portion.
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The invention pertains to systems for the management and routing of optical fiber cables.
In the telecommunications industry, the use of optical fibers for signal transmission is accelerating. With the increased utilization of optical fiber systems, optical fiber cable management requires industry attention.
On area where optical fiber management is necessary is the routing of optical fibers from one piece of optical fiber equipment to another. For example, in a telecommunications facility, optical fiber cables may be routed between fiber distribution equipment and optical line terminating equipment. In buildings and other structures which carry such equipment, the cable routing can take place in concealed ceiling areas or in any other manner to route cables from one location to another.
When routing optical fibers, it is desirable that any routing system will be readily modifiable and adaptable to changes in equipment needs. Accordingly a routing system is not practical which would require a high capital outlay and which could not be readily adapted to changes in a customer's needs. Namely, if routing paths, once established, are forever fixed, the system cannot adapt. Also, and perhaps most important, any routing system must protect optical fibers from damage. In the use of optical fibers, it is recognized that the fibers should not bend beyond a minimum radius of curvature. For example, it is commonly recognized that optical fibers should not be bent in a radius of less than 1.5 inches. U.S. Pat. No. 5,937,131 discloses an optical cable exit trough addressing some of these concerns, however, there remains room for improvement.
According to preferred embodiments of the present invention, a cable routing system is disclosed for routing optical fiber cables between optical transmission equipment. The system includes a lateral trough section configured for defining a cable pathway. An exit trough is mountable to the lateral trough section to provide a cable exit pathway from the lateral trough section. The exit trough includes a bracket portion mountable to a top edge of the lateral trough section. Two curved lead-ins on opposite ends of the bracket portion each define a cable pathway leading to an exit trough portion extending from a middle of the bracket portion in a direction away from the lateral trough section. The exit trough portion includes a convexly curved bottom trough surface, two convexly curved upstanding sides on opposite sides of the bottom trough surface, and an upstanding guidewall for cable management.
In one embodiment, the exit trough includes an aperture for receiving a removable insert. The removable insert includes a major surface forming a portion of the bottom trough surface of the exit trough. The removable insert may include an upstanding guidewall for cable management.
The exit trough defines a cable pathway leading upwardly and away from the lateral trough section. The exit trough is mountable to the lateral trough section without modification to the lateral trough section. The exit trough can be placed generally at any location along the lateral trough section, and can be placed during initial system setup, or at a later time as the need arises for an exit pathway from the lateral trough section, such as when new optical transmission equipment is added to the system. The exit trough may include a downspout portion defining a downwardly directed cable pathway, or other directional pathway as desired. The insert with guidewall allows for cable management of the cables passing from the lateral trough section to the downspout or other directional pathway element.
In one preferred embodiment, the lead-in portions of the exit trough are configured to receive removable flanges for improved cable management.
In a further preferred embodiment, the exit trough may be covered by an exit cover which includes a cover plate hingedly mounted to a pivot plate. The exit cover is disposed over the exit trough and the lateral trough section. The hingedly mounted pivot plate allows access to the lateral trough section without having to remove the entire cover.
Referring now to
Generally, lateral trough section 20 includes first and second upstanding sides 24, 26, and a bottom 28 extending therebetween and defining cable pathway 22. Side 24 includes a top edge 30. Opposite side 26 also includes similar top edge 32. Lateral trough section 20 includes a plurality of attachment members 34 on an outside portion for use in attaching lateral trough sections 20 together end to end, or adding other system hardware.
As will be described below, exit trough 100 mounts to lateral trough section 20 adjacent to top edge 30 of side 24. Exit trough 100 creates a cable exit pathway from lateral trough section 20. Preferably, exit trough 100 mounts to lateral trough section 20 through attachment member 34, such as with a fastener.
Exit trough 100 includes a bracket portion 102 including an outer projecting member 104, an inner projecting member 106, and a connecting member 108. Bracket portion 102 generally defines a U-shape for receipt of a portion of side 24 such that top edge 30 is positioned adjacent to connecting member 108. Exit trough 100 conveniently and securely mounts to lateral trough section 20 via one or more fasteners positioned through outer projecting member 104 and engaged with attachment member 34 of lateral trough section 20. The exit trough 100 may also include a support arm 10 extending from the bottom side of the lateral trough section 20 to a point beneath the exit trough 100.
For protection of the optical fiber cables, inner projecting member 106 of bracket portion 102 is tapered. As shown in
The two cable lead-ins 124 and 134 each define a slot 119 and hole 121 for receiving snap-mounted removable flanges 123 and 125. Flanges 123 and 125 each include a downwardly depending surface 127 which, when flanges 123 and 125 are snap-mounted to the lead-ins 124 and 134, define cable pathways between the flanges 123 and 125 and the inner projecting member 106 of the bracket portion 102 to assist with cable management. Flanges 123 and 125 are optional, and provide a downwardly depending flange structure to assist with cable management and retention of the cable when desired. Flanges 123 and 125 include posts or tabs 122 which are received by the slot 119 and hole 121 of the cable lead-ins for snap-mounting of the flanges 123 and 125. The flanges 123 and 125 may also include an alignment rail 122' (see
Exit trough 100 includes an exit trough portion 144 extending from bracket portion 102 at middle 120 away from lateral trough section 20. Exit trough portion 144 includes a bottom trough surface 146 and upstanding sides 148 on opposite sides of bottom trough surface 146. Generally bottom trough surface 146 extends upwardly and away from top edge 30 of lateral trough section 20, and includes a convex shape. Upstanding sides 148 extend from each respective lead-in 124, 134, and also define convex shapes. Exit trough portion 144 defines a cable pathway linked to cable pathway 22 of lateral trough section 20 via cable pathways of the lead-ins 124, 134.
In exit trough 100, exit trough portion 144 links lateral trough section 20 to a downspout 160. Downspout 160 generally provides a cable pathway for cable exiting in a downward direction relative to lateral trough section 20.
Significantly, the bottom trough surface 146 may define an insert aperture 151. The insert aperture is configured to receive a removable modular insert piece 161. The insert aperture 151 may receive modular inserts each having different cable management components. For instance, as seen in
Referring now to
As shown in
With exit trough 100 mounted to lateral trough section 20, cable extending generally horizontally to the ground through lateral trough section 20 is allowed to route upwardly and away from lateral trough section 20, and then to route downwardly through downspout 160 for connection to optical transmission equipment, or other uses. Downspout 160 is connectable via any suitable means to other cable routing components, such as vertical troughs or conduit, as desired. The various curves provided with exit trough 100 help protect the optical fiber cables from being bent beyond a minimum radius of curvature.
The disclosed exit trough 100 allows for exit pathways from the lateral trough section 20 without modification to the lateral trough section 20. This is useful during initial system setup, and also during modifications of the system at later dates. Exit trough 100 can be added at any time quickly and easily. Cable damage is avoided since any cables in lateral trough section 20 are not disturbed and do not have to be moved when exit troughs 100 are added. Also, fasteners are all that is needed to mount the preferred bracket portion 102 of the exit trough 100 to the lateral trough section 20. In addition to the downspout 160 other directional components are possible from exit trough portions 144 of exit trough 100 such as horizontal portions which lead horizontally away from the lateral trough instead of vertically.
The preferred embodiments of exit trough 100 also include an exit cover 31. The cover 31 prevents dust and other foreign material from falling into or collecting inside the exit trough and lateral trough while allowing easy access to the troughs. As shown in
The cover plate 33 includes retention tabs or clips 41 which in combination with detent grooves 43 or clips 43' (see
The pivot plate 37 may be pivoted relative to the cover plate 33 between an open position as shown in
Having described the present invention in its preferred embodiment, modifications and equivalents may occur to one skilled in the art. It is intended that such modifications and equivalents shall be included within the scope of the claims which are appended hereto.
Johnson, Brian L., Wentworth, Michael J., Johnson, Wayne, Kampf, Thomas W., Watts, Alex
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